Jig.



Patented July APmcATion min JUNE 23, 1914.

LS. AMIS.

I. C. AMIS.

. u ne. nAPPLICATION FILED JUNE 23, I9I4. I

Paented July I3, 1915.

, UNITED STAIIESEPATENCI oFFIoE.

, JOHN l(EARL AMIS, 0F TOMS CREEK, VIRGINIA.

J IG.

, Specifica To all whom it may 'concern Be it known that I, JOHN C. AMIS, a citizen of the Ilnited States, and a resident of Toms yCreek, in" the county of IVise and State o f Virginia, have invented certain new and useful Improvements in Jigs, of which the following is a specification'.

This invention relates to jigs, adapted for use in the separation of base materials from mixtures as originally mined, such as slate from coal, and the main object thereof is to accomplish this resultat any desired specific gravity, regardless of the per cent. of heavy or light materials, automatically.

A further object is to accomplish this result by passing the mixture `over a suitable screen and subjecting the same to pulsations of water directed through said mixiture. f

A further object is to provide mechanical j means for removing the heaviest' materials from said mixture.

A further object is to provide a gage for regulating the depth of the bed of mixture passing to said mechanical discharge means.

A further object is -to provide an adjustable gate for gaging the specific gravity of the materials passing thereover.`

A further object is toprovide a dam for permitting the lightest materials to pass from said jig directly.

A further object is to insure such separation at atmospheric pressure in ont jig, and to providel means for accomplishing such separation by acompressed air cushion in another jig, all automatically, and in a controllable manner. Y j

My invention isfully described in the following specification, of which the accompanying drawings form a part, in which the same parts are designated by the same reference characters in each of the views, and in which:

Figure 1 is a longitudinal, vertical, section taken through a jig constructed in accordance with my present invention; Fig. 2 is a similar, but enlarged, view of a part thereof; Fig. 3 is a section taken lon the line .3-3 of Fig. 2; Fig. 4t is a view similar tio Fig. 2,

of 'a portion not shown in `Fig. 1;,1nd Fig.

x tion/oi` Letters Patent. Patented J 1115? 13, 1915l Application med June 2a, 1914. seriai No. 846,761. I

.passing under a baille-plate a5 which tends to force the same toward the scl'eeI/t/aa,v and said screen is vertically yadjustable by ineens of bolts a6 and nuts a7, as clearly shown im Fig. l, said screen being hinged'at Y zltoa filed partfof the screen support or frame of t e jig. The material on the screen is worked across the screen by pulsations of water from perforated pipes b arranged beneath the same, the jets of water from which are-evenly distributeddover the under side of the screenv by means of plates b2, said pipes I) being provided with valves b3 whereby'anysediment may be removed from the pipes and are also provided with gate Valves t* and are connected Witha rotary valve casing b5 in turn connected; with aifeed pipe b, and I provide a rotary valve o? Within said casing having pockets. 68 in the periphery thereof, of any suitable number, size, or

shape, and said casing may also be suitably A formed to assist in delivering Water to the 'pipes t, from the feed pipe, in pulsations,

bolts 01-01, and which carries an adjust-l able, transversely arranged plate c2 to regulate the depth of the'bed of material pass- I ing thereunder, and above said dam c are a plurality of pipes or tubes 03 Which extend above the water-level and beneath which is a sloping plate c4 which is integral with the dam c and adjustable therewith, said plate c4 assisting in the formation of a passage @5 divided, by means ofapartition o6 from another passage c7 and both of Which passages lead downwardly to a predetermined pont.

At the mouth of the passagei c7 a verti-A cally adjustable gate Z to gage the material going thereover, adjustable by means of a threaded bolt d2 and hand-wheel da, or suitf ablejequivalent, and the' partitiqn c6 is partly composed of a trap c opening to the passage c5 for a reason later eXplai ed.

Within the passage c7, adjacent the gate d, .is a rotary discharge valve d4 having suitably formed pocketstherein to receixfe the heaviest materiels amil eonvey them to the l ifmleriel, iereje lumps, ete., iron into the ige o, and all of the. mixture lighter 1' that carried oil bt" the valve ein: and heavier than that et Whieh the generation ie 'to he merle, 'passes under the editie-table plete fr to the gate o7 over which 'it is forced by he water pulsations and the 'verd moveient ofthe mixture upon screen, and

this relatively heavy materiel tolls into the :segecf. The tubes c3, beine; open et ir tops, permit the Water to pese theieinto euch ionisation, insiiee o sind water boy; oroeflo'ver the tete i and. through the missile@ c, und thus to the refuse elevator boot, not shown, but with which the liirer ends oi seid passages ci enti o? oonneot, Eind this reet importance in the'propei: operzif the iig, infiemoeh es they thee serre l? "fair for the o fr pulso 'iter materiali, un

if, gravity, meses over thence oi ,r :i dewfeteriug?, screen a to per-A mit superfluous writer to ese" 311e, rthence to :mother unit having" s surfen l ,ingggeil et w3 :incl beneath which is si. perfo miie-Vl pipe 7), similar in ell neet.; to that elreoclv described, ami the materiels carried along' seid .screen e2 toward en eil-- instable olete et on :i dem c in the manner :already set foi-th.

The .flarn e5 has e sloping plate connected therewith and assisting;n together with e per titiou. f, to forni e f2., a portion of sniil partition being hingeef., shown et f3, .seid partition also assisting in forming; :t passage y :and both of which passages lenil to e refuse elevator :n shown, and lnlf provide e gate el, ed'neteble by :me-:ms ".'j slots therein and bolts e8, et w the message f2, and it Wil?. be iightest materiels ness over the si the writer overiow, to another unit or oompertinent, ,it desire-cl,

or iuither .refine-ment:

ln the unit now esc'rileii l proef no tubes es et o3 in the mfeiree' scribed, the result heine; t in the pocket forme beneath the this bei; an Aiinnortent part oi oneri tion, an, l :ils-o 'provide e neeleveivo in the plete e adapted to he actuated "1 oben top arrangement of the tubes e- Lmoee oet in such manner that the valve will `open When Water lbeneath the plate falls below a certain level to allow free passage of air, and closes when said Water .level is raised above said point, as it is ot great importence'that the amount of air in the chamber c, 'formed by the pieter" and dam c", shall be .-constnnt, side Webs e being provided on the seid dam and such chamber. Within the pnssngef, adjaoent its mouth, is e. rotary. disohaiige valve f5 which is provided with pockets f therein to carry off the heaviest materials from the screen e2' and to the passage f, und the hinged membei1 f3 opens when large lumps are engaged vin the 'said discharge -vzilve bevonel the cepeciuy of its pockets.

' In operatiomthe material comes to the discharge end oi1 this jig in e more or less stretilif l forni, the heaviest at the bottom enfl t ightest it the top, and the former works under the plete e4 on the dem e5 und 'into the U-simieffl tube or space between the ssifl plete and the inte e?, entirely across the width oi the jig', the heaviest particles being teken by the discharge valve and the lightest nuthin seid U-ehaped tuoe passes over the gate Aseuming that we have e layer ott siete or heavy materiel on the screen e, :i layer of coni or other light material on top el: this, nml a column of slate or. heavy wriel in the U-shaped tubl and which by weight, en eqnel' A. en of the on the screen; When'the pulsntion 'eter begins, the Water rushes up U-tube lifting vthe slate sind o vit over the gate el, thus 'the air in the chamber e to e throi ,i marrying.; @empre .1 rl-:egiee and, w is sin lcient, the begins to flow through the material in the box and mises the some :incl allowing some of the material to take timepiece of' that raised in the U-tube; as the ofthe slate in the jig 'box increases, the herder it is for the Water to force its wey through, and We have a more violent fiction ,in the tube, more compression in the air chamber and more slate carried oil' over the gate el, and by this method we get a. positive specific gravity separation indeliiiitely, for Vle do not have an accumulation of the very heaviest material on the screen. We also sec-,fire a uniform overflow entirely across the g, m which is adjustable; a tube in i eal working condition because of theA removal of the largest lumps by ine-evs of the discharge Valve; We separate in xecl amounts and at uniform rates; we provide for the entity of air in the chamber en; and we ,o `e the screen in any desired degree.

vier infuse materiels from coal or other` l ncee, by

' .i ler absoluto control, mechanical discharge plate to insure hen said pressure in the U-tube l maintenance of a Constant 'l thus be seen #het T sepa-rate theVV ineens of Water pulsationg.

valvesA and water compressed air, and any numl 'er ot' units may be employed, and other haines made over the form described, within i-ha seope of the following claims, and, with sut-h reservation,

What I elaim as new, and desire to secure hv VLetters Patent, is:

l. comprising a support, a screen theieon. a feed for directing a mixture onto said sereeu. an adjustable dam over which the lightest materials of said mixture may pass, means for supplying water, in pulsations, to said jig. through the mixture on said sereen. meuhanieal means for reluoving he heaviest materials of said mixture from said sei-een. a sloping plate *forming an air chamber thereover, an automatic air-valve for said chamber, and an adjustable gate beneath said chamber for controlling the speeih'c gravity ot' materials passing thereover, the air in said Chamber being Compressed by the water pulsations to force accumulating materials in the yU-tuloe so formed over said gate, as forced upwardly by said pulsations.

2. A jig, comprising a support, a screen thereon, a feed for directing a mixture onto said sei-een. means for separating the lighterl materials of said mixture from the heavier, mechanical means for removing the heaviest materials from said screen, a hinged trap arranged over said mechanical means to accommodate unusually large lumps ot' material and permit the same to escape from said. mechanical means, and adj ustahle means for regulating the depth of the mixture passing to saidmechanieal means.

In testimony whereof I have signed my name to this specification in the presence of the subscribing witnesses.

J OHN CARL AMIS.

lritnesses: i

W. H. KINsnR, O. B. NEWTON. 

